Conductor support



Cl Home H. P. CHANDLER CONDUCTOR SUPPORT Filed Sept.

Patented Oct. 21, 1924.

V 1,512,451 UNITED STATES PATENT OFFICE- HOMER PAYNE CHANDLER, OFMANSFIELD, OHIO, ASSIGNOR 'lO THE- OHIO IBEASS "COMPANY, OF MANSFIELD,OHIO, A CORPORATION OF NEW JERSEY.. i

connucron SUPPORT.

Application filed September 26, 1923. Serial No. 664,885.

The object of my invention is to provide a device as stated above whichis particularly adapted to use in mines where the mineroof is low and itis desired to place the trolley conductor as'near the roof as possiblewith safety, and this object is ac complished by producing a device ofas little vertical height as possible, consistent with requirements ofstrength, insulation,'

etc., andto so place'the supports secured to the device, and by means ofwhich it is secured to the roof supports, that the upper edge ofthedevice can be brought into close proximity to the mine roof. Myinvention resides in the new and novel construction, combination andrelation of the various parts hereinafter more fully described and shownin the accompanying drawing.

In the drawing:

Figure 1 is a top plan view of my invention.

Fig. 2 is a side view in elevation. Fig. 3'is an end View.

Fig. 4 is a longitudinal sectional view of the attaching means forsecuring the de vice to the overhead supports and is taken on the line4+4: of Fig. 1.

Fig. 5 is a sectional view on the line 5-5 ofFig. 4.

In the preferred form of the construction embodying my invention Iemploy an insulating member 1, preferably of'wood', although otherinsulating material, such as fiber, etc., may be used. To the ends ofthe member 1 I secure connecting members 2 secured to the member 1 bymeans of the bolts 3 and each provided with a longitudinally extendingrecess to receive the ends of the trolley wire 4: which is held in therecess by means of the set screws 5. The inner ends of the connectingmembers 2 are spaced apart and the space between the ends is filled withan insulating runner piece 6,

the lower surfaceof which conforms to the lower surface of the members 2thereby giving a smooth andunobstructed path for r the currentcollector. Other means maybe used for the member 6, such as a metal-runner piece spaced from the members'2 or 'a pivoted member-whichmay bemoved into, or out of position between the members 2. .The device isprovided with brackets 7, one at eachend by means of which it issupported from the roof by means of well known roof supports such. asinsulated hangers held in place by lag screws, expansion bolts, etc. Thebrackets are secured to the member 1 by means of the bolts 3. In orderto support the device as near the roof as possible the projecting endsof the brackets 7 are set low upon the device, so. that they projectlongitudinally. at a point between the upper and lower face of themember 1. It has been the custom in the pastto mount the means by whichthe device is supported from the-roof to the upper face of the member 1either at the center or atthe ends, but this method means a greaterdistance between the trolley wire etand the roof. of the mine, which is-objectionable To'overcome this defect, I-have so mounted the brackets 7that the upper edge of the member 1' may be positioned above the'up peredge of the outer ends of the'brackets 7.

Theend of the bracket 7 is provided with a novel construction, in thatthe bracket is provided with anielongated slot 8 in which is looselymounted a rotatable and slidable nut 9. The nut is provided with athreaded recess 10 by means of which the nut is secured to the roofsupport by rotation of the nut 9. To secure the nut 9 to the member 7the upper endof the nutis provided with a thin annular flange or lip 11which originally stands upright. A washer 12 of the shape shown isplaced in position as shown,

together with the member 9, and by suitable tools the annular flange orlip 11 is rolled outwardly, therebylocking the members 9 and when suchis the case it is a difficult and expensive matter to properly securethe device in place. If desired, the slot 8 ma be made a circle therebypermitting lateral, as well as. longitudinal adjustment.

By giving the upper end faces of the member 1 a greater bevel and byproperly shaping the bracket member 7, the projecting end of the member7 can be brought still lower, in fact, as low as necessary clearancesbetweenthe members 9 and 5 will permit.

M d fi at ons w l ead y ue'st hemselves to others skilled in the art,therefore, I do not wish to be limited otherwise than by my claims.

I claim;

1, An article of manufacture comprising an insulating member, conductorconnecting ber sec r o the end re f, me to secure conductors thereto andsupport members secured to the insulating member and projecting in alongitudinal direction and intermediate the upper and lower facesthereof.

2. An article of manufacture comprising an insulating member, spacedconductor connecting members secured to the ends thereof andprovidedwith means to receive conductors, means positioned between theinnernds f the onducWr c nnect g m m r to provide an under-run for acurrent collcctor and support members secured to, and projecting ljomeach end of the insulated and projecting intermediate the membe upperand lower faces thereof.

3. A sectioninsu] scribed for trolley conductors provided with spacedand insulated projecting supporting means which projects from a pointintermediate the upper and lower edges thereof.

i. A section insulator of the class de-] scribed for trolley conductorsprovided with projecting and swivelly mounted supporting means whichprojects from a point below-the. upper limit thereof.

5,13 section insulator of the class described for trolley conductorsprovided with a rotatable support member adjustable in a plane parallelto the plane of the trolley wire.

6 An article of manufacture comprising an insulating member, spacedconductor connecting members secured thereto, means positioned betweenthe inner ends of the connecting members to permit a currentcollectorto. pass from one connecting memher ,to the other connectingmember and a plurality of spaced, rotatable and longitudinallyadjustable support members securedto. the insulating member.

7,.A. section insulator of the class described forftrolley conductorsprovided with a plurality of spaced and adjustable supporting .mean-sprojecting in the direction of the. trolley conductor.

ator of the class de- 8. A section insulator of the cla s scribed fortrolley conductors provided with a'plurality of spaced, rotatable andlongitudinally adjustable supporting means.

9. A section insulator of theclass described provided with a pluralityof depressed, insulated, spaced and projecting supporting members.

10. A section insulator of the class described provided with a pluralityof spaced and projecting supporting members and each member providedwith an adjustable means to secure the insulator to an overhead support.

11. A. section insulator of the class described provided with supportingmeans comprising a part secured to the insulator, a, projecting member,means mounted on the projecting member for attachment to an overheadsupport, the said means having its upper face below the extreme upperface of the insulator and rotatable about a vertical axis.

lZ -r section insulator comprising an insulating beam, spaced conductorconnecting members secured to thebeam, means. to provide a runningsurface for a current collector between the connecting members, theinsulating beam having its. upper surface at itsends beveled downwardlyand outwardly in a. longitudinal direction and a support member mountedon each beveled surface and secured to the beam.

13. A se tion sulator comprising an nsulating beam, spaced conductorconnecting members secured to the beam, means to. provide a runningsurface for a current collector between the connecting members, theinsulating beam having a portion of each of its ends depressed and asupport member mounted on each depressed portion and secured to thebeam.

191-. A. section insulator comprising an insulating beam, spacedconductor connecting members secured to the beam, means to guide currentcollector from member: to nember, a pair of supporting members securedto; the beam and having a depressed portion relative to the top of thebeam and rotatable means, mounted on each, depressed portion forsecuring the device to overhead supports. V

15. A. sectioninsulatorcomprising an in sulating beam, spaced conductorconnecting members secured to the beam, means to. provide a runningsurface for a current. collector from member to member and sup portingmeans for securing the device to an o v'erhead support, and providedwith a projecting member, an opening therein and a rotatable membermounted there n and provided with means for attachment to the overhead.support, Y

In testimony whereof I my signature, I

